Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6dc69a373e0215…

MALICIOUS

PDF

80.4 KB Created: 2021-09-15 18:35:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 1a509e0a0b8180403bcc662bf9ac5c58 SHA-1: c359c0892ecb2ade932faeacbc76e5e84b2d993e SHA-256: 2b6dc69a373e02158528dd764cde6f9d130a3cdf6609bf106a6308e69f30846f
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://irlanc.ru/uplcv?utm_term=past+perfect+continuous+pdf PDF link annotation
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16136b9c1b8218---54258826222.pdfIn PDF document text
    • http://aybar-gallery.com/userfiles/files/dapakaxut.pdfIn PDF document text
    • http://www.zaluziemalina.cz/userfiles/file/92016599233.pdfIn PDF document text
    • http://eko-inwest.eu/upload/file/pufujoxupufis.pdfIn PDF document text
    • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/6b3b48ce4b84c9471fede5e3a0b38143/52748083998.pdfIn PDF document text
    • http://metamorfoza-krosno.pl/userfiles/file/96047346917.pdfIn PDF document text
    • https://fotofidelity.cz/userfiles/file/rosakanajosizoreni.pdfIn PDF document text
    • https://pima-alarms.rs/slicice/file/kewiro.pdfIn PDF document text
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16138e42cb3e85---xefew.pdfIn PDF document text
    • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613025d1afabc---julanosepe.pdfIn PDF document text
    • http://moiarchitekci.pl/pliki/file/2883343539.pdfIn PDF document text
    • http://fertilityupdates.com/userfiles/files/bigedagagerege.pdfIn PDF document text
    • http://zatexpress.com/upload/userfiles/files/tipegejorepodudemo.pdfIn PDF document text
    • https://hotlinepro.in/admin/userfiles/file/61222736276.pdfIn PDF document text
    • https://truckforceone.com/upload/editor/file/ragabojotijureterofif.pdfIn PDF document text
    • http://polaryachts.com/res/wysiwyg/file/zovakobinedilok.pdfIn PDF document text
    • http://hzxgdz.com/images/upload/File/koboxovet.pdfIn PDF document text
    • https://atrax.hr/files/zufijuwese.pdfIn PDF document text
    • http://tsutae-f.com/js/upload/files/72120422165.pdfIn PDF document text
    • http://mebco.ru/images/file/49483543770.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD516 10668 bytes
SHA-256: 69eab22a8e72baea96cca0ae3c18f42f49125b0aca532c5d6405f2c1ffd909af
font_01_sfnt_off0000edb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000105c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C4 17844 bytes
SHA-256: 2cea73ab54b5c72495b8a3c5e9cd5c1e42b26f08d272522ccdab62c3b8fd683d

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